<!DOCTYPE html>
<html lang="zh">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>TOP_BANNER</title>
    <script src="../js/jquery-3.5.1.min.js"></script>
    <link rel="stylesheet" href="../css/bootstrap4.5.min.css">
    <link rel="stylesheet" href="../css/public.css">
    <style>
        .top_banner {
            height: 324px;
            width: 100%;
            overflow: hidden;
        }

        .top_banner img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        @media (max-width:768px) {
            .top_banner {
                height: 200px;
            }
        }
        @media (max-width:500px) {
            .top_banner {
                height: 97px;
            }
        }
    </style>
</head>

<body>
    <div class="top_banner">
        <img src="../images/top_banner_1.jpg" alt="">
    </div>
</body>

</html>